Il 99 over Little Missouri CR.
Schuyler County, Illinois · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Il 99 over Little Missouri CR. in Schuyler County, Illinois, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1986, making it 39 years old at the 2025 inventory.
- It carries about 500 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 77 of the 115 inventoried bridges in Schuyler County rated fair (67.0%); 12 (10.4%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (40.10891, -90.76774)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 149 ft |
| Location | .25M N Brown County |
| NBI structure number | 085003100000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Schuyler County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 67 over Bluff Creek | 2022 | 3,400 | Good |
| US 67 over Crane Creek | 1959 | 3,350 | Fair |
| US 67 over E Fork Crane CR Trib | 1959 | 3,100 | Fair |
| US 67 over E Fork Crane Creek | 1959 | 3,100 | Fair |
| US 24 over Crooked CR Trib | 1960 | 3,050 | Good |
| Il 103 over Crane Creek | 1932 | 1,350 | Fair |
All bridges nearby: Schuyler County, IL bridge conditions · every bridge in Schuyler County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.